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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
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Subject: Re: alternative elsif branch not tested
Date: Fri, 23 Feb 2018 18:34:59 +0100
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On 02/23/2018 11:51 AM, Mehdi Saada wrote:
> got it ! in "Argument (1)'Length /= 1 and ARGUMENT(1)(1) not in 'n'|'c'|'N'|'C'"
> "and" must be "or" or else it complains only if when the TWO error cases are present... Funny.

What does your fixed code do if you call it like

program "" abc

?

-- 
Jeff Carter
"Strange women lying in ponds distributing swords
is no basis for a system of government."
Monty Python & the Holy Grail
66